Businesses in Mount Oliver, Pennsylvania

As of October 4, 2026, ListRiver's records show 37 active registered businesses in Mount Oliver, Pennsylvania. 59% are LLCs.

From official Pennsylvania registry records, updated weekly. Most Mount Oliver businesses are in Allegheny County. Look up a Pennsylvania business by name.

Businesses on record

Formed in the last 12 months

Formed in September

Most common type

LLCs

59% of businesses

New Mount Oliver businesses per month

Businesses on record by formation month, through September 2026. Monthly Pennsylvania new-business reports

Entity types

LLCs22 · 59%
Corporations11 · 30%
Nonprofits3 · 8%
Limited partnerships1 · 3%

Newest business names registered in Mount Oliver

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This is a small sample, not the full list. To keep automated scrapers from copying our data, we only show a handful of records on public pages. Your downloaded list includes every matching business.

Business	City	Type	Formed
Name hidden	Mount Oliver	Nonprofit	Jul 2026
Name hidden	Mount Oliver	Nonprofit	Feb 2026
Name hidden	Mount Oliver	Corporation	Aug 2025
Name hidden	Mount Oliver	LLC	Jun 2024
Name hidden	Mount Oliver	Corporation	May 2024
Name hidden	Mount Oliver	Corporation	Nov 2023
Name hidden	Mount Oliver	LLC	Feb 2023
Name hidden	Mount Oliver	LLC	Jan 2023
Name hidden	Mount Oliver	LLC	Dec 2022
Name hidden	Mount Oliver	LLC	Oct 2022
Name hidden	Mount Oliver	LLC	Apr 2022
Name hidden	Mount Oliver	LLC	Apr 2022
Name hidden	Mount Oliver	Limited partnership	Feb 2022
Name hidden	Mount Oliver	LLC	Sep 2021
Name hidden	Mount Oliver	LLC	Aug 2021
Name hidden	Mount Oliver	LLC	Apr 2021
Name hidden	Mount Oliver	LLC	Jan 2021
Name hidden	Mount Oliver	LLC	Dec 2020
Name hidden	Mount Oliver	LLC	Sep 2019
Name hidden	Mount Oliver	LLC	Aug 2019
Name hidden	Mount Oliver	LLC	Oct 2018
Name hidden	Mount Oliver	LLC	Jan 2017
Name hidden	Mount Oliver	LLC	Mar 2016
Name hidden	Mount Oliver	LLC	Feb 2016
Name hidden	Mount Oliver	LLC	Oct 2015

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Common questions about Mount Oliver businesses

How many businesses are registered in Mount Oliver, Pennsylvania?

ListRiver has 37 active registered businesses in Mount Oliver, Pennsylvania on record as of October 4, 2026, from official Pennsylvania business registry data. Dissolved and defunct businesses are not counted.

How many new businesses were formed in Mount Oliver, Pennsylvania in September 2026?

0 businesses on record in Mount Oliver, Pennsylvania were formed in September 2026.

How many new businesses opened in Mount Oliver, Pennsylvania in the last 12 months?

2 businesses on record in Mount Oliver, Pennsylvania were formed in the 12 months through September 2026.

What is the most common type of business in Mount Oliver, Pennsylvania?

LLCs are the most common: 22 of 37 businesses on record (59%), followed by Corporations with 11 (30%).

Where does this data come from?

From Pennsylvania's official business registry. ListRiver loads each new state file, standardizes it, removes duplicates and updates its database weekly. Email and industry details are added from SMBCredit.net where available.

How do I get a list of businesses in Mount Oliver, Pennsylvania?

Use ListRiver's list builder to filter Mount Oliver, Pennsylvania businesses by entity type, formation date, industry and contact details, see the exact count and price, and download a CSV. Every list includes monthly refresh files.

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<div style="max-width:520px"><iframe src="https://listriver.com/embed/new-businesses/pennsylvania/mount-oliver" title="New businesses in Mount Oliver, Pennsylvania by month" width="100%" height="370" style="border:0" loading="lazy"></iframe><p style="font:13px sans-serif;margin:4px 0 0">Source: <a href="https://listriver.com/business-lists/pennsylvania/mount-oliver">Businesses in Mount Oliver, Pennsylvania</a>, ListRiver</p></div>

About this data

Counts come from official Pennsylvania business registry records on file with ListRiver, current as of October 4, 2026. They include businesses that are active on the state register; dissolved and defunct entities are excluded. Contact details are added from SMBCredit.net where available. Formation months reflect the registration date the state reports. See the methodology for sources, update schedules and known limits.